Tape core mandrel



FIG. 1 is a perspective view of a tape core mandrel showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view, the rear elevation being a mirror image thereof;

FIG. 4 is a bottom view thereof; and

FIG. 5 is a right side elevational view, the left side being a mirror image thereof. 

The ornamental design for a tape core mandrel, substantially as shown. 